Across
1
Flat grassland in tropical regions
5
One of seven major landmasses
6
Line dividing two countries
7
Vast body of salt water
11
Imaginary line around the middle of Earth
Down
2
Landform where river meets the sea
3
Body of water surrounded by land
4
Largest river in South America
6
Low-lying land surrounded by higher ground
8
Mountain that can erupt with lava
9
Seasonal heavy rainfall
10
Ridge of rock or coral near the surface
12
Large slow-moving mass of ice